Alarm.



No. 699,53l. Patented-May 6, I902. m. P. .mmscn.

ALARM.

(Application flled J's-n. 2, 1902.)

(N1) Model.) 2 1,

lTED STATES PATENT i OFFICE.

MAXIMILLIAN P. JANISCH, OF MUSKEGON, MICHIGAN.

ALARM.

SPEGIFIGATIOJAI forming part of Letters Patent No. 699,531, dated May 6,1902.

Application filed January 2,1902. Serial No. 88,148. (No model.)

To all whom, it may concern.-

Be it known that I, MAXIMILLIAN P. J A- NISOH, a citizen of the-UnitedStates, and a resident of Muskegomin the county'of Muskegon and State ofMichigan, have invented certain new and useful Improvements in Alarms;and I do hereby declare that the following is a full, clear, and exactdescription thereof.

The improvements consist in what is hereinafter particularly set forthwith reference to the accompanying drawings and subsequently claimed,the main object of the invention being to provide an alarm-controlleradjustable to be brought into the opening path of an ordinary hinge-hungdoor, whereby pressure of the door on said controller will result in aprotracted alarm.

A further object of theinvention is to provide for yield of the carrierof the alarm-com troller to clear the door in case the latter is openedfar enough to permit a person to cross the threshold of its frame.

A still further object of theinvention is to provide for operating thealarm-controller from outside the door when said controller and itscarrier are adjusted out of the opening path of said door.

Figure 1 of the drawings represents an elevation in full lines of amechanical alarm mechanism partly broken and adjustable on a door-frameto be out of the opening path of the adjacent door, a dotted-linediagram of said mechanism being shown in the same fig- =ure opposing thedoor; Fig. 2, a sectional view indicated by line 2 2 in the firstfigure; Fig. 3, a similar view indicated by line 3 3 in the secondfigure; and Fig. 4, a detail plan view, partly in horizontal section,illustrating a push-stem and gravity-latch for same embodied in thealarm mechanism herein illustrated.

Referring by letter to the drawings, A indicates a vertical portion of adoor-frame, and B a portion of the door, that in practice is hinged tothe frame to be swung inward. Fastened to said vertical portion of thedoorframe by screws or otherwise is a disk 0, having an annular flange band radial lugs c d 6, these lugs being at quarter-intervals of acircle. The disk flange engages the space within an annular flange f ofan arm D, and the same space contains a spiral spring E, normallycontracted by means of a pivot-screw F, that for lost motionin thepivot-joint of said arm and fixture on the door-frame. A lateral fin gof arm D is arranged to playbetween disk lugs d c or d e, accordingly asthe door is hung to open right or left, said lugs serving as stops tolimit adjustment of said arm and parts in connection therewith.

Upper ears h of arm D are connected to cars 'iof a ring G by means of apivot j, and a spiral spring 71; is arranged on the pivot to normallyhold the ring in the same plane as said arm, the joint being a flexibleone for the purpose hereinafter specified. Fast on inner radial ears ofring G is the frame of a common type of spring-motor having a gong-bellH in screw-thread connection with the mainspring-arbor, said springbeing wound by turning the bell in the proper direction. The rod-shank mof the bell-striker I is in connection with the axis of the pallets thatengage with the escapement-wheel J of the motor, and a collar n of apush-stem K is normally in contact with said shank under the same tocheck operation of said motor, there being protracted ringing of thebell when said collar is clear of said shank. The push-stem isretractive in the motor-frame against resistance of a spiral spring 19,arranged on said stem between its collar and a plate of said frame. Theouter end of the push-stem is provided with a head q, and an annulargroove 0 is formed in said stem adjacent to its inner end.

In pivotal connection with the motor-frame is a gravity-latch L, havingupper corner-lugs s, of which one or the other thereof-is en gageablewith the annular groove in pushstem K when arm D and parts in connectiontherewith are swung downfrom-vertical or horizontal position in theopening path of the door aforesaid. The gravity latch is preferablyprovided with an upper central and offset lug t, that constitutes a stopfor the push-stem when said latch is vertical.

The shank u of a spring-controlled pushbutton M is shown extendedthrough the door-frame to operate against head (1 of pushstem K when thesame is in register therebeing closed and the alarm-controller carrierswung from vertical to horizontal position, the gravity-latch Lautomatically adjusts itself to'have a lug .9 thereof abut saidalarmcontroller ready to engage the groove r of same, as shown by dottedlines in Fig. 1 and full lines in Fig. 4. Now if the door be unla-tchedand pushed ajar there will be engagement of the alarm-controller withthe gravity-latch, and a protracted alarm will result. Owing to theflexible joint of the alarm --controller carrier the door may be swungfar enough open to perm-it a person to cross the threshold of its framewithout damaging said carrier, the latter yielding sufficiently to clearsaid door, it being understood that the adjustment of said carrier maybe otherwise than pivotal without departure from the generic scope of myinvention.

Having thus described my invention, what Icla-irn as new, and desire tosecure by Letters Patent, is

1. An automatic alarmcontroller and a carrier with which it hasretractive engagement adjustable to be in or out of the opening-path ofa door, and a latch automatically engageable with said controller onretraction of the same by door-pressure thereon.

2. An automatic alarm-con troller and a pivotally-adjustableflexibly-jointed carrier with which it has retractive engagement, and alatch automatically engageable with the controller to hold the same inretracted position subsequent to pressure thereon when said carrier isarranged and adjusted in connection with a support to be in the openingpath of a door.

3. An-automatic alarm-controller and carrier for same adjustable inconnection with a support to be in or out of the opening path of a door,and an independent spring-controlled push-button arranged in connectionwith the door-frame to have its shank oppose said controller when thesame with its carrier is adjusted out of said opening path of the door.

4. A door-frame fixture having an annular flange and radial lugs, an armhaving a flange lapping the fixture-flange and provided with a finhaving play between fixture-lugs, a pivot extending through the arm andfixture, a spiral spring surrounding the pivot under compression,between said arm and fixture, a spring-motor adjustable with theaforesaid arm, a gong-bell in connection with the mainspring-arbor ofthe motor, a bell-striker having shank connection with the pallet-axisof said motor, and a spring-controlled push-stem having a collararranged to be normally under the bell-striker shank to check operationof the aforesaid motor.

5. A door-frame fixture having an annular flange and radial lugs, an armhaving a flange lapping the fixture-flange and provided with a finhaving play between fixture-lugs, a pivot extending through the arm andfixture, a spiral spring surrounding the pivot under compression betweensaid arm and fixture, a spring-motor adjustable with the aforesaid arm,a gong-bell in connection with the mainspring-arbor of the motor, abell-striker having shank connection with the pallet-axis of the motor,a'spring-controlled push-stem having a collar arranged to be normallyunder the bell-striker shank to check operation of said motor, and agravity-latch automatically adjustable to be engageable with thepushstem when the latter is retracted by pressure of a door subsequentto having been brought in the opening path of same.

6. A door-frame fixture, a flexibly-jointed carrier in pivotallyadjustable connection with the fixture, automatic alarm mechanism inconnection with the carrier, andan alarmcontroller in the form of apush-stem arranged to be brought with said carrier in the openingpath ofa door.

7. A door-frame fixture, a flexibly-jointed carrier in pivotallyadjustable connection with the fixture, automatic alarm mechanism inconnection with the carrier, an alarm-controller in the form of apush-stem arranged to be brought with said carrier into the opening pathof a door, and means for holding said push-stem in retracted positionsnbsequent to door-pressure thereon.

8. A carrier for adjustable connection with a door-frame automatic alarmmechanism in connection with the carrier, an alarm-controllerin the formof a spring-controlled pushstem arranged to be brought with said carrierin the opening path of a door, and a spring-controlled push-button forconnection with the door-frame to have its shank in register with saidpush-stem when the latter and the aforesaid carrier are adjusted out ofthe way of the door.

In testimony that I claim the foregoing I have hereunto set my hand, atMuskegon, in the county of Muskegon and State of Michigan, in thepresence of two witnesses.

MAXIMILLIAN P. JANISOH.

Witnesses:

J. J. CORCORAN, CARL TIETZ, Jr.

